No account. No tracking. Just dungeons. Sleep Dungeon sends nothing to us. Your heroes, your loot and your codex are saved on your device, and the only online service it uses is Apple's own App Store, for purchases.
Who we are
Stationify Oy (Business ID: 3608699-3, D-U-N-S: 369301281) is a software company based in Helsinki, Finland. Sleep Dungeon is published on the Apple App Store by Stationify Oy.
Our privacy principle
We believe people own their data. Sleep Dungeon follows one rule: collect nothing unless the app literally cannot function without it. Your character, dungeon runs, and codex stay on your device. We do not operate user accounts, tracking systems, or analytics platforms.
Data we collect
The short answer: as little as possible. The table below describes the categories of data Sleep Dungeon handles.
| Data type | Collected? | Details |
|---|---|---|
| Save data (hero, inventory, runs, codex) | On-device only | All progress is stored locally in JSON files inside the app sandbox, including the journal of your last 30 nights. Older nights are deleted automatically. |
| Sleep stage data | On-device only | If you grant Apple Health access, the game reads your sleep to set how deep the night's expedition can go. Read-only and processed on device; the game never writes to Apple Health. Without access, it uses the sleep window you set. |
| Background processing | System only | iOS runs one short background task at your wake time to prepare the morning's alert. It runs locally and sends nothing. |
| Notifications and Live Activity | On-device only | If you allow notifications, the game schedules local reminders (a bedtime reminder and the morning's result). An expedition in progress can show as a Live Activity on the Lock Screen. Both are created on your device; there are no push notifications and no server sends them. |
| Personal information (name, email, phone) | No | We do not collect personal identifiers. No account is required. |
| Usage analytics & tracking | No | We do not use analytics SDKs, ad trackers, or third-party telemetry. |
| Advertising data | No | We do not display ads or participate in ad networks. |
| Device identifiers | No | We do not read or store IDFA, IDFV, or hardware identifiers. |
| Purchase information | Apple only | In-app purchases (Sleep Dungeon Pro, the Adventurer's Pack, gates and tips) are processed entirely by Apple. We do not receive or store your payment details, and Apple does not tell us who bought what. The game keeps a local note of which purchases you've claimed. |
| Diagnostics & crash data | Apple only | If you opt in to share diagnostics with developers via iOS Settings, Apple may provide us with anonymised crash reports. We do not operate our own crash reporting service. |
Third-party services
Sleep Dungeon does not integrate third-party analytics, advertising, or social media SDKs. The only external services involved are:
- Apple HealthKit — for optional sleep-duration reads, governed by Apple's Privacy Policy
- Apple StoreKit — for in-app purchases, restoring them, and the occasional App Store rating prompt
- iOS Background Tasks, notifications and Live Activities — for the wake-time alert and the expedition on your Lock Screen, all scheduled on your device
Data storage & security
All save data is stored locally on your device in JSON files, protected by iOS. The game does not sync it anywhere; like other app data, it is part of your device backups if you make them. You can delete all game data at any time by removing the app from your device.
Children's privacy
We do not knowingly collect any personal data from anyone, including children under 13. Because Sleep Dungeon does not collect personal data, it complies with COPPA and similar regulations by design.
Data retention
We do not retain any user data because we do not collect any. Your save lives only on your device. When you delete the app, all local data is removed with it.
Your rights
Under GDPR and other privacy regulations, you have the right to access, correct, and delete your personal data. Since we do not collect or store personal data on our servers, there is nothing for us to provide, correct, or delete. All data remains under your control on your own device.
Changes to this policy
If we update this policy, we will revise the "Last updated" date at the top of this page. If Sleep Dungeon introduces new data practices, we will update both this policy and the app's App Store privacy label before the change takes effect.
Contact
If you have questions about this privacy policy or about Sleep Dungeon, contact us at:
Stationify Oy
Helsinki, Finland
[email protected]
stationify.fi
Security contact: [email protected] · Reporting a security problem